The Evil Within is a music track that is unlocked during a cutscene in the While Guthix Sleeps quest. It also plays during certain cutscenes in Ritual of the Mahjarrat, and at the start of Nadir.
It was reworked on 21 November 2016.
| Lists | |
| Official Sound Tracks |
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| Rewards |
 Air Guitar Demonic Rock Off |
| Miscellaneous |
 Music Player |